Intel will conduct the first public demonstration of Foster this week, a Pentium 4 chip targeted at workstations and servers, at the National Association of Broadcasters conference in Las Vegas, company officials said. Foster is a replacement to the Pentium III Xeon line of chips. Designed as a dual-processor chip, Foster will debut at 1.4GHz and operate with Rambus memory, officials said. With Foster, Intel hopes to capture a larger share of the high-end workstation market from companies such as Sun and sgi. Pricing has not been announced, but industry analysts expect Foster to be much more expensive than single-processor Pentium 4 chips.